--- /dev/null
+<?php
+/*
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the MIT license. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace Doctrine\ORM\Tools\Console;
+
+/**
+ * Used by CLI Tools to restrict entity-based commands to given patterns.
+ *
+ * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
+ * @link www.doctrine-project.com
+ * @since 1.0
+ * @author Benjamin Eberlei <kontakt@beberlei.de>
+ * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
+ * @author Jonathan Wage <jonwage@gmail.com>
+ * @author Roman Borschel <roman@code-factory.org>
+ */
+class MetadataFilter extends \FilterIterator implements \Countable
+{
+ /**
+ * Filter Metadatas by one or more filter options.
+ *
+ * @param array $metadatas
+ * @param array|string $filter
+ * @return array
+ */
+ static public function filter(array $metadatas, $filter)
+ {
+ $metadatas = new MetadataFilter(new \ArrayIterator($metadatas), $filter);
+ return iterator_to_array($metadatas);
+ }
+
+ private $_filter = array();
+
+ public function __construct(\ArrayIterator $metadata, $filter)
+ {
+ $this->_filter = (array)$filter;
+ parent::__construct($metadata);
+ }
+
+ public function accept()
+ {
+ if (count($this->_filter) == 0) {
+ return true;
+ }
+
+ $it = $this->getInnerIterator();
+ $metadata = $it->current();
+
+ foreach ($this->_filter as $filter) {
+ if (strpos($metadata->name, $filter) !== false) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ public function count()
+ {
+ return count($this->getInnerIterator());
+ }
+}